Birth name: Kim Tae-yeon (Hangul: 김태연 | Hanja: 金泰妍)
DOB: March 9, 1989
Birthplace: Jeonju, North Jeolla, South Korea
Height: 160cm | Blood type: O
Group leader.
DJ on Good Friend Radio (Chinhan Chingoo) from 2008 to April 2010.
Solo in If – drama OST for Hong Gil Dong (2008).
Solo in Can you hear me – drama OST for Beethoven Virus (2008).
Starred in variety show We Got Married (2009) with comedian Jeong Hyeong-don.
Duet with Sunny in It’s Love – drama OST for Heading To The Ground (2009).
Starred in stage musical Midnight Sun (2010).
Voiced for animated film Despicable Me (2010).
Duet with The One in Like A Star (2010).
Co-host of variety talk show Win-Win (2010).
Solo in I Love You – drama OST for Athena: Goddess of War (2010).
Duet with Kim Bum-soo in Different (2011).

Jessica

Korean name: Jung Su-yeon (Hangul: 정수연 | Hanja: 鄭秀妍)
DOB: April 18, 1989
Birthplace: San Francisco, California, USA
Height: 163cm | Blood type: B
Elder sister of Krystal, member of girl group f(x).
Released two singles, Oppa Nappa and Mabinogi, with Tiffany and SeoHyun.
Duet with SHINee’s Onew in One Year Later (2008).
Duet with Park Myeong-su in NaengMyun (2009).
Starred in Korean production of Legally Blonde – The Musical (2009-2010).
Solo in Sweet Delight – commercial song for SPC Group (2010).

Sunny

Birth name: Lee Sun-kyu (Hangul: 이순규 | Hanja: 李順圭)
DOB: May 15, 1989
Height: 158cm | Blood type: B
Co-DJ of Chun Ji Radio (2007-2008).
Solo in Finally Now – movie OST for Story of Wine (2008).
Co-host of The M (2009-2010) with SS501′s Hyungjoon and then 2AM’s Seulong.
Duet with Taeyeon in It’s Love – drama OST for Heading To The Ground (2009).
Starred in reality-variety show Invincible Youth (2009-2010).
Solo in Your Doll – drama OST for Oh My Lady (2010).

Tiffany

Birth name: Stephanie Hwang
Korean name: Hwang Mi-young (Hangul: 황미영 | Hanja: 黄美英)
DOB: August 1, 1989
Birthplace: Los Angeles, California, USA (but raised in Diamond Bar)
Height: 162cm | Blood type: O
Released two singles, Oppa Nappa and Mabinogi, with Seohyun and Jessica.
Co-host of Sonyeo Sonyeon Gayo Baekso with Kim Hye-sung (2007-2008).
Solo in By Myself – drama OST for Ja Myung Go (2009).
Duet with K.Will in A Girl Meets Love (2009).
Co-host with Yuri for MBC’s Music Core (2009 – July 2010).
Solo in Banji – drama OST for Haru (2010).

Hyoyeon

Birth name: Kim Hyo-yeon (Hangul: 김효연 | Hanja: 金孝淵)
DOB: September 22, 1989
Birthplace: Incheon, South Korea
Height: 160cm | Blood type: AB
Formed a dance group Little Winners Crew with miss A’s Min (2004) before debut.

Yuri

Birth name: Kwon Yuri (Hangul: 권유리 | Hanja: 權侑利)
DOB: December 5, 1989
Height: 167cm | Blood type: AB
Played a part in sitcom Unstoppable Marriage (2007) alongside Sooyoung.
Duet with Sooyoung in Must – drama OST for Working Mom (2008).
Co-host with Tiffany for MBC’s Music Core (2009 – July 2010).
Starred in reality-variety show Invincible Youth (2009-2010).

Sooyoung

Birth name: Choi Soo-young (Hangul: 최수영 | Hanja: 崔秀英)
DOB: February 10, 1990
Birthplace: Seoul, South Korea
Height: 170cm | Blood type: O
Made a brief debut (2002) in Japan as pop duo Route φ with Marina Takahashi.
Played a part in the sitcom Unstoppable Marriage alongside Yuri (2007).
Duet with Yuri in Must – drama OST for Working Mom (2008).
Played a part in movie Hello Schoolgirl (2008).

YoonA

Birth name: Im Yoona (Hangul: 임윤아 | Hanja: 林允兒)
DOB: May 30, 1990
Birthplace: Seoul, South Korea
Height: 166cm | Blood type: B
Played a part in drama 9 Ends 2 Out (2007).
Played a part in drama Woman of Matchless Beauty (2008).
Starred in drama You Are My Destiny (2008-2009).
Starred in drama Cinderella Man (2009).
Starred in variety show Family Outing 2 (2010).
Solo in Innisfree Day – commercial song for Innisfree (2010).

SeoHyun

Birth name: Seo Joo-hyun (Hangul: 서주현 | Hanja: 徐珠賢)
DOB: June 28, 1991
Birthplace: Seoul, South Korea
Height: 168cm | Blood type: A
Group maknae.
Released two singles, Oppa Nappa and Mabinogi, with Jessica and Tiffany.
Duet with trot singer Ju hyun-mi in JjaRaJaJja (2009).
Starred on variety show We Got Married with C.N.Blue’s Jung Yong-hwa (2010).
Solo in It’s Ok Even If It Hurts – drama OST for Kim Soo Roo (2010).
Voiced for animated film Despicable Me (2010).
Featured in Let’s Go – G20 Seoul Summit OST (2010).
Solo in Journey – drama OST for Paradise Ranch (2011).